Time-controlled apparatus.



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ARTHUR HAMMERSTEIN, OF NEW YORK, N. Y.

- TIME-CONTROLLED APPARATUS.

Specification of Letters Patent.

Patented Feb. 22, 1910.

Application filed February 20, 1908. Serial No. 416,859.

To all whom it may concern:

Be it known that I, Auriu'm [Immun- H'r cm, a citizen of'the UnitedStates, and

resident of the borough of Manhattan, city,

county, and State of New York, have invented certain newand--usefulImprovements in 'Iime-(lontrolled Apparatus, of which thefollowing is a specification.

My invention relates to time'controlled apparatus and has for its objectto provide a mechanism which after a predetermined period of time willperform certain functions, such as for instance raising a carrier witheggs from the boiling water, or operating an alarm to give notice of thefact that the period of time for which the apparatus was set has elased.

My invention will be fully described hereinafter and the features ofnovelty will be pointed out in the appended claims.

In the accompanying drawings in which I have illustrated two forms of myinvention; Figure 1 is a sectional elevation showing my apparatus inuse, Fig. 1" is an enlarged detail view of the piston rod; Fig. 2 is afront elevation of my device; Fig. 3 is an enlarged detail section ofthe air inlet. valve; Fig. 4 is a front elevation of a difl'crent formof my apparatus and Fig. 5 is a side elevation thereof.

The apparatus comprises a cylinder A to which is secured a bracket Bhaving arms C and resilient tongues I). The bracket. is further providedwith a member E adapted for engagement with the edge of a receptacle F,which receptacle is also engaged by the arms C, and the resilienttongues D which serve to hold the apparatus in operative position. I

A piston G is arranged to work in the cylinder A, andis secured to apiston rod G having an operating knob or handle G The said piston G fitsloosely in the cylinder so that air may pass slowly between it and thecylinder wall for the purpose to be more fully described hereinafter. Agroove Gr extends longitudinally of the piston rod G and cooperates witha projection G located on the inside of the cylinder head,-to preventthe said piston rod from turning. A coil spring II is located inside ofsaid cylinder between the piston G and the cylinder head A. The lowercylinder head A is provided'with an air inlet having a valve seat I anda valve I secured to a stem P, which valve is maintained in its normalor closed position by a springl. The piston rod G passes between twomembers of a lever J pivoted at J it )On the cylinder .head A and havingan inclined slot J near its free end. A link K is provided with a )lfl Karranged 'to work in said slot J an is pivotally connected at K with alatch L fulcrumed at L on the cylinderA. This link K also carries amember K which serves as an indicator in connection with a scale G whichis produced on the piston rod G to indicate the period-of time whichwill elapse before the apparatus will perform the function for which itis intended. This member K also acts as a retaining device in connectionwith grooves G extending around the )iston rod at. the various points ofthe scale, to hold said piston rod as will be hereinafter described. Asupporting hook M pivot ed at M to an upward extension of the bracket Bis thrown into its upper or inoperative position by a spring M The hookM is connected by means of a link N with a. piston N of a dash-pot Nsecured to said bracket l). The said hook is also provided with, a noseM? adapted for engagement with. the latch L as will be more clearlybrought out hereinafter.

O is a carrier, in the present instance a circular plate having openings0 for the A handle or rod P is secured to the central ortion of the saidcarrier and is provide with spaced projections P and an eye P arrangedfor engagement with the free end of the hook M.

Assuming the device is in position on a reception of eggs 0.

receptacle and is intended for timing the the apparatus would performits functionzf In thus drawing out the piston rod the sue.-

tion induced by the piston opens the valiteil this;

and permits air to enter the cylinder at point. After the piston rod Ghas;

drawn out the required distance, the carrier in the present illustrationwith eggs thereinis then placed upon the hook M,-and theto force thepiston G tion of the sprin is retarded by the air a which is between t eiston G and the cylin- K to ride up in the slot J der head A which airpasses slowly b the piston G owing to the fact that the sai piston fitsthe'cylinder loosely, the valve I being kept closed meanwhile owing tothe pres sure of the air thereon- The iston slowly descends until thehead G of t e piston rod engages the. lever J which is now forceddownwardly causing the pin K of the lever As soon as the said in K hasreached the upper portion of sa1d slot, which takes place before thepiston has reached its lowermost .position, the continued pressure ofthe head G forces the lever J to further descend and thus moves the linkK in a downward direction,

normal position by the spring M and swings thus causing the latch L to'swing on its ivot L. As soon as the latch L has moved own enough torelease the nose M of the hook, the said hook is forced upward to itsthe carrier with the eggs thereon out of the boiling water. the hook isretarded by the dash pot N and piston N so that the motion is a slow andgradual one and doing away with the danger of breakage or other injuryto the contents of the carrier. The eggs are then removed from thecarrier and the operation repeated. It will thus be seen that myapparatus is simple and highly effective and is adjustable to dlfi'erentlengths of time, by simply drawing the piston rod out more or less asdesired.v Furthermore the timing begins atthe instant desired, in thepresent case, the moment the eggs reach the boiling water.

In many instances it may be desirable to sound an alarm upon the lapseof a predetermined length of time, in which case the device illustratedin Figs. 4 and 5 may be used. In this form of my invention the cylindera is provided with a bracket 6 secured thereto by collars b andscrews 1) for hanging or otherwise supporting the device. a is a bellwhich is suita ly mounted on the cylinder a and provided with the usualspring capable of belng wound and which when unwinding as hereinafterdescribed operates the clappers or hammers d to sound the bell. A inione is secured to the shaft 0' of the bel to which one end of the springis also fastened. The other end of the spring is spring. During thiswinding of t This upward movement of drawn from the opening f of therack 7,

A bar a is loosely mounted on the shaft e of the bell and carries aspring pressed pawl e which engages the teeth of a ratchet wheel asecured to the shaft e to turn therewith. The pinion e meshes with arack f capable of sliding in guides it carried by. the cylinder q. Theup er end of this rack is bent and 1s provide with an opening 5" intowhich extends a projection g locate on the head g of the piston rod 9This piston rod g passes through an eye located in the mem- 7 her iofthe arm 2' which arm is pivoted at 2' between lugs i fastened to thecylinder a. This arm 2' is also provided with another member 2' having anose 5 for holding the clapper against movement through its engagementwith the pin e on sa1d bar 6. A spring 5 tends to maintain the said armin its normal position. In otherv respects this form of my device is thesame as shown and descrbedv with regard to Figs. 1, 2,'and 3. This formof my invention operates as follows: The piston .rod is drawn out in thesame manner as hereinbefore described, until the scale thereon indicatesthe length of time it is desired to have elapse until the alarmissounded. This drawing out of the piston causes the rack f to move withit and to rotate the pinion e to wind u the bell he spring, the pawl asimply rides over the teeth of the ratchet a so that the bar e isstationary while .the spring is wound. After the piston rod has beendrawn out the required distance, it is released and immediately be- 10gins to return to the cylinder in the same 3 manner as described inregard to Fi s. 1, 2, and 3. As the piston and piston To; return to thecylinder the projection g is withthus leaving the sa1d rack in its outerposi- 1 tion. As soon as the head 9 engages the arm 5 and swings saidarm on its pivot i the nose 6 is withdrawn from en agement with the pine of the bar e an permits the spring to unwind and to operate the hammerwhich also causes the rack f to return to its initial position. The useris thus informed that the predetermined period of time has assed. A

It is to e understood that any bell mechanism suitable for the urposemay be used in place of the one I ave shown and described.

I claim 1. In a time controlled apparatus, the combination of a clinder; a iston arranged to move therein y graduaily displacing thecontents of the cylinder; a graduated rod on the piston; a devicefor-engaging the rod to 125 hold it temporarily in its set position; atrip lever carried b the cylinder; and means for trippin said evercontrolled by' the move.- ment 0 the piston.

2. In a time controlled apparatus, the com- 0 bination of a cylinder; aistofl arranged to move therein by gradualy displacing the contents ofthe cylinder; a graduated rod on the piston; a device for engaging therod to hold it temporarily in its set position; a trip lever carried bythe cylinder; means for tripping said lever controlled by the move-'ment of the piston; and means associated with said lever for tilting itupward when it is released.

3. A time controlled mechanism compris ing a cylinder, a piston movabletherein, a hook pivotally carried by said cylinder, a carriersupportedby said hook, a latch for maintaining said hook in its operativeposition, means secured to said piston for releasing said latch topermit said hook to return to its initial position, after apredetermined period of time has ela sed, and means connected with saidhoo for re movement of said hook as it returns to its initial position.

In testimony whereof I have signed my name to this specification in thepresence of two subscribing witnesses.

ARTHUR HAMMERSTEIN.

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